Re: [microblaze-uclinux] [patch] memory management initialisation cleanup

[Yasushi SHOJI <yashi@xxxxxxxxxxxxxxxxx>]

At Fri, 30 Jul 2004 15:29:46 +1000,
John Williams wrote:
> 
> Hi folks,
> 
> Attached is a trial patch that cleans up the so-called bootmem-debacle, 
> and other memory initialisations that go on before the kernel boots.
> 
> Basically I've just lifted the mechanism used in arm/armnommu kernels. 
> They take a clean approach to the whole thing.

yup, it is clean, but it has some unneeded code for mmu-less cpu, ie
most of free_memmap(), {O,V}_PFN_{UP,DOWN}.  but the patch looks good
for the start.

IMHO, we need to provide __pa() __va() family macro for seemless
integration for arch independent code.  but we should keep
arch/microblaze/* as clean as we can.

or, we can keep arch/microblaze/mm/* code in sync with arm so that we
can play with other fun stuff ;p

any plan in your mind, John?

[...]

> This patch reverts the link scripts (mbvanilla.ld and suzaku.ld) to page 
> align the __init_end, as discussed in my previous email.  Yashi (and 
> anyone else who's interested), can you please give this a try and let me 
> know if it works for you?

it worked on SUZAKU without discon mem.  I haven't tested with discon
mem setup, yet.  we need to modify a few line to tell the kernel how
many banks we have on each platform.

Great job, John!

best,
--
           yashi
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